diff --git a/usr.bin/dtc/fdt.cc b/usr.bin/dtc/fdt.cc
index 988a339dccc2..9998e8c21166 100644
--- a/usr.bin/dtc/fdt.cc
+++ b/usr.bin/dtc/fdt.cc
@@ -1379,7 +1379,7 @@ device_tree::parse_dts(const char *fn, FILE *depfile)
 		    (input.next_token(),
 		    input.consume_integer(len))))
 		{
-			input.parse_error("Expected /dts-v1/; version string");
+			input.parse_error("Expected size on /memreserve/ node.");
 		}
 		input.next_token();
 		input.consume(';');